Try this: mytable.addMouseListener(new MouseAdapter() { public void mousePressed(MouseEvent mouseEvent) { JTable table =(JTable) mouseEvent.getSource(); Point point = mouseEvent.getPoint(); int row = table.rowAtPoint(point); if (mouseEvent.getClickCount() == 2 && table.getSelectedRow() != -1) { // your valueChanged overridden method } } });
I think the simplest way to build a model from an instance of ResultSet, could be as follows. public static void main(String[] args) throws Exception { // The Connection is obtained ResultSet rs = stmt.executeQuery(“select * from product_info”); // It creates and displays the table JTable table = new JTable(buildTableModel(rs)); // Closes the Connection JOptionPane.showMessageDialog(null, … Read more
Use BorderFactory.createEmptyBorder() instead of null… by using: sp.setBorder(createEmptyBorder()); it works. Your main method becomes: public static void main(String[] args) { JFrame frame = new TestScrollPane(); JPanel panel = new JPanel(); JTable table = new JTable(); panel.setLayout(new BorderLayout()); panel.add(new JLabel(“NORTH”), BorderLayout.NORTH); panel.add(new JLabel(“SOUTH”), BorderLayout.SOUTH); JScrollPane sp = new JScrollPane(table); sp.setBorder(BorderFactory.createEmptyBorder()); panel.add(sp, BorderLayout.CENTER); frame.add(panel); frame.setVisible(true); }
First, add your JTable inside a JScrollPane and set the policy for the existence of scrollbars: new JScrollPane(myTable, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); Then, indicate that your JTable must not auto-resize the columns by setting the AUTO_RESIZE_OFF mode: myJTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
Remove the TableColumn from the TableColumnModel. TableColumnModel tcm = table.getColumnModel(); tcm.removeColumn( tcm.getColumn(…) ); If you need access to the data then you use table.getModel().getValueAt(…). For a more complex solution that allows the user to hide/show columns as they wish check out the Table Column Manager.
It’s very easy, JTable has scrollRectToVisible method too. If you want, you can try something like this to make scrollpane go to to the bottom if a new record is added : jTable1.getSelectionModel().setSelectionInterval(i, i); jTable1.scrollRectToVisible(new Rectangle(jTable1.getCellRect(i, 0, true))); Where i is last added record.
You can do it calling setRowSelectionInterval : table.setRowSelectionInterval(0, 0); to select the first row.
data_table.getTableHeader().setReorderingAllowed(false); should do the job, unless you mean that the user can resize column headers.
Put your JTable inside a JScrollPane. Try this: add(new JScrollPane(scrTbl));
If you want to notify your JTable about changes of your data, use tableModel.fireTableDataChanged() From the documentation: Notifies all listeners that all cell values in the table’s rows may have changed. The number of rows may also have changed and the JTable should redraw the table from scratch. The structure of the table (as in … Read more